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How to check if smtp is working from commandline (Linux) [closed]
I have a SMTP-server, for the purpose of this question lets call it: smtp.mydomain.com.
4 Answers
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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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Citing the author of a blockquote using Markdown syntax
I am using the Symfony CMS and it uses Markdown for article writing. I need to do a blockquote of a quote from Benjamin Franklin and would like to have the quote followed by a citation beneath it, but right now all it does is blockquote the whole line. How does one do this in markdown syntax?
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Left padding a String with Zeros [duplicate]
I've seen similar questions here and here .
20 Answers
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Bash command to sum a column of numbers [duplicate]
I want a bash command that I can pipe into that will sum a column of numbers. I just want a quick one liner that will do something essentially like this:
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How to find out element position in slice?
How does one determine the position of an element present in slice?
6 Answers
6
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Wait for a process to finish
Is there any builtin feature in Bash to wait for a process to finish?
14 Answers
14
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What does template mean?
When declaring a template, I am used to having this kind of code:
4 Answers
4
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What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
Performance associated with Arrays and Objects in JavaScript (especially Google V8) would be very interesting to document. I find no comprehensive article on this topic anywhere on the Internet.
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What, exactly, is needed for “margin: 0 auto;” to work?
I know that setting margin: 0 auto; on an element is used to centre it (left-right). However, I know that the element and its parent must meet certain criteria for the auto margin to work, and I can never seem to get the magic right.
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